Created almost 9 years ago, updated 5 months ago
Formula: For a $2 \times 2$ matrix: $$\det\begin{pmatrix} a & b \\ c & d \end{pmatrix} = ad - bc$$
**Formula:** For a $2 \times 2$ matrix: $$\det\begin{pmatrix} a & b \\ c & d \end{pmatrix} = ad - bc$$Copy